Answer:
Step-by-step explanation:
- DC = AC = x is the radius
<u>Using the Pythagorean theorem, find x:</u>
- (x + 9)² - x² = 15²
- x² + 18x + 81 - x² = 225
- 18x = 225 - 81
- 18x = 144
- x = 144/18
- x = 8
t must equal √2h/g but I don't see that in the choices above
Answer:3
Step-by-step explanation:
<span>A={4},
the group set has only one element in it
so n (A)=1
</span>
I hope that
helps!